This morning at work I felt almost like I had all the nutrition and energy sucked out of my blood. I…

This morning at work I felt almost like I had all the nutrition and energy sucked out of my blood. I felt off, tired, and slightly dizzy. I went home after I started having some sharp cramping. I just woke up after a long nap and am feeling better but has anyone else had this feeling? It is possible that I have/had the start of some illness but I’m not sure what was going on